Device for operating elevator-doors.



No. 734,484. I PATENTED JULY 21, 1903. M. P; WHITE & H. STBUER.

DEVIGE FOR OPERATING ELEVATOR DOORS. APPLICATION 11.21) FEB. 17, 1903.

NO MODEL.

2 SHEETS-SHEET 1.

No. 734,484. PATENTED JULY 21, 190s.

M. P. WHITE & H. STEUER.

DEVICE FOR OPERATING ELEVATOR DOORS.

APPLICATION FILED PEB.17, 1903.

NO MODEL. 2 SHEETS-SHEET 2.

' I and Her mm S/Zeaer 0/. Z Z 1 door sections. The lower end of thelever UNITED 7 STAT-Es Patented July 21, 190s. PATENT ()FFICE.

MELVILLE P. WHITE AND HERMAN STEUER, OF CHICAGO, ILLINOIS,

ASSIGNORS TO CHICAGO ORNAMENTAL IRON COMPANY, OF CHI- CAGO, ILLINOIS, ACORPORATION OF ILLINOIS.

DEVICE FOR OPERATING ELEVATOR-DOORS.

SPECIFICATION forming part of Letters Patent No. 734,484, dated July 21,1903. Application filed February 17, 1903. Serial No. 143,809. (Nomodel.) i

To ctZZ whom it may concern: 7

Be it known thatwe, MELVILLE P. WHITE and HERMAN STEUER, citizens of theUnited States, residing at Chicago, in the county of Cook and State ofIllinois, have invented a certain new and useful Improvement in Devicesfor Operating Elevator-Doors, of which the following is a full, clear,concise, and exact description, reference being had to the accompanyingdrawings, forming a part of this specification.

Our invention relates to devices for operating elevator-doors, andespecially to devices for operating sectional doors of this kind.

The object of the invention is to provide a simple, practical, andinexpensive device for operating elevator-doors, consisting of aplurality of sections, all of which are intended to slide the same wayin opening and shutting.

In the accompanying drawings, Figure 1 is a view of a portion of anelevator-framework and a sectional elevatordoor provided with operatingmechanism embodying our invention. Figs. 2 and 3 are sections taken onlines 2 2 and 3 3, respectively, in Fig; 1. Fig. 4 isa view "similar toFig. 1 of a modified form. Fig. 5 is a vertical section taken online 5 5in Fig. 4. Y

Referring first to the form shown in Figs. 1, 2, and 3, the uprights'land 2'indicate the side walls of the elevator-shaft, and 3 3 3 thegrillework thereof, it being understood that the view is taken from'theinterior of the elevator-shaft looking out. An elevator-door A is showncomposed of separate'sections 4 and 5. These are suitably suspended ontracks 6 6 in any usual or desired manner. A swinging rod or lever 7 isshown pivotally supported at 8 on the elevator grille or frame work andextended downwardly to the elevatoris provided with a slot 9, whichengages a pin 10 on the section 4. A brace or branch lever-bar 11 issecured to the rod or lever 7 and provided with a slot 12, which-engagesa pin 13 on a cross-rod 14 at the top of the section 5. The lever 7, itwill be seen, is pivotally supported or secured at its upper end to theelevator-framework and pivotally connected with the section 4 of theelevator-door: at its lower end and with the section 5 at a point midwaybetween its ends. It will'thfus be seen that when the section 4 ispushed to the right, referring to Figs. land 2,-it will swing the leveror rod 7, and thereby cause the same to move the section 5 to the rightalso. The two sections will continue to move, the seotion 4 moving twiceas fast as the section 5, until both have assumed a position at theright-hand side of the opening forming the doorway. When the door is tobe closed, the two sections will be moved to the left, the section 4moving twice as fast as the section 5, and thereby coming into itsproper position at the same time that the section 5 reaches itsposition.

In the modificationshown in Figs. 4and 5 the general construction is thesame, except that instead of the lever 7 .with its connections andmechanism a lever 15 is provided and pivoted at one side of theelevator-framework. This lever 15 is provided with two slots 16 and 17,the former of, which receives and engages a pin 18 on the section i5and,thelatter of which receives and engages'a pin The operation is sub- 19on the section 4. stantially the same as that of the other construction,the section 4 moving in each direction twice as rapidly and twice asfaras the section 5.

It will be seen that the above construction is simple,practicah'inexpensive, and "easily operated. It will be understood thatchanges and modifications can be made in the arrangement withoutdeparting from the spiritof the invention.

What We claim as our invention isl. The combination with anelevatoredoor consisting of several sections, each of which is providedwith a pin, of a pivoted leverprovided with severallongitudinally-extending guideways, one for each pin, substantially as.7 pivoted at its upper end above the door and having a slot 9 at itslower end and provided with a brace 11 secured between its ends and 2wease projecting laterally and provided with a slot our names this 12thday of February, A. D.

12, and pins 10 and 13 on the sections 4 and 1903. 5 respectively,adapted to fit and work in the MELVILLE P. WHITE. slots 9 and 12, thepin 13 being mounted upon HERMAN STEUER. 5 a brace-piece 14 on thesection 5, substantially Witnesses:

as described. A. MILLER BELFIELD,

I. 0. LEE.

In witness whereof We hereunto subscribe l

